OBD Connector Issue

[john at westcoastgarage.net]

> Good point - neighbor's GTI thing was never solved properly (there was a
> grey wire that was supposed to not be connected, but it didn't fix
> things).  So once a year he unplugs the stereo to make the OBD work for
> the state inspection.
>
> Tony Hoffman wrote:
>> First question is, is there an aftermarket stereo in the car? Ran into
>> that more than once on the later model German cars. The problem is in
>> the adapter between the stereo and the factory connector. Trace one of
>> the feed wires (blue, I think) and you will see where it goes to two
>> connectors. Cut it, and the problem vanishes. The connector
>> manufacturer did that so it would work for several cars.
>>
>> Tony
>>
>> On Fri, Mar 6, 2009 at 10:20 PM, mkb <mkb125 at yahoo.com> wrote:
>>> Ok Folks,
>>>
>>> First issue for me on the 99 A6 28q Avant.  Took it for an emissions
>>> test but the emissions guy was unable to get the analyzer to
>>> communicate with the OBD.  He suggested I take it to another station
>>> and try someone who is running a different analyzer.  So I did that and
>>> the tech there said that he sees a comm channel open between the
>>> analyzer and the car but nothing else.  Can't get a reading though.  I
>>> have access to a friends VAG-COM which I'll try hooking up tomorrow but
>>> was wondering if anyone had encountered such an issue before.
>>>
>>> Any BTDT out there?
>> _______________________________________________
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>> quattro at audifans.com
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>> ---
>> Watch this space for ads :)
>>
>>
>
> --
> Huw Powell
>
> http://www.humanspeakers.com/audi
>
> http://www.humanthoughts.org/
>
>
Here's a link to the REAL fix, including the reasons it needs to be done.

http://www.ross-tech.com/vag-com/aftermarket-radio.html

I've had to "FIX" this on any number of cars, including one car twice
because the clowns at Best Buy "re-fixed" the wire I cut.  Trust me, THEY
paid for it, as the customer became very loud and very in-their-face in
front of a largish number of shoppers in the store after they tried to
blame the problem on anyone and anything but their technician.

John